Log4j2 JSON Configuration for Java Logging Severity Levels, Formatting and Appenders

In below previous post you read about Log4j2 XML configuration for Appenders, formatters and Loggers for Console and File Logging. I have also explained about RollingFile appeneders and there management.

Below is Log4j2 JSON configuration equivalent to XML configuration and dependency required for JSON. For more info in detail and configuration steps follow previous post for Log4J2 XML configuration.

You have to add below JSON dependency in your class path or pom.xml

POM.XML

<!-- basic Log4j2 dependency -->
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.6.1</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.6.1</version>
</dependency>
<!-- Asynchronous logging for multithreaded env -->
<dependency>
    <groupId>com.lmax</groupId>
    <artifactId>disruptor</artifactId>
    <version>3.3.4</version>
</dependency>

<!-- Jackson JSON Processor -->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.4.1</version>
    </dependency>

create file log4j2.json in your root folder or resource folder.

{
   "configuration": {
       "status": "info",
       "monitorInterval": "60",
       "name": "FacingIssuesOnIT",
      "properties": {
         "property": [
            {
               "name": "filename",
               "value": "target/FacingIssueOnIT.log"
            },
            {
               "name": "log-path",
               "value": "C:/logs/"
            }
         ]
      },
      "appenders": {
         "Console": {
            "PatternLayout": {
               "pattern": "%d{yyyyMMdd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"
            },
            "name": "STDOUT",
            "target": "SYSTEM_OUT"
         },
         "File": {
            "PatternLayout": {
               "pattern": "%d %p %c{1.} [%t] %m%n"
            },
            "name": "file",
            "fileName": "${filename}"
         },
         "RollingFile": {
            "PatternLayout": {
               "pattern": "%d{yyyyMMdd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"
            },

                "Policies": {
               "SizeBasedTriggeringPolicy": {
                  "size": "100 MB"
               },
               "TimeBasedTriggeringPolicy": {
                  "interval": "1",
                  "modulate": "true"
               }
            },
            "DefaultRolloverStrategy": {
               "Delete": {
                  "IfFileName": {
                     "glob": "*/FacingIssueOnIT-*.log.gz"
                  },
                  "IfLastModified": {
                     "age": "1h"
                  },
                  "basePath": "${log-path}",
                  "maxDepth": "2"
               }
            },
            "name": "RollingFile",
            "fileName": "${log-path}/FacingIssueOnIT.log",
            "filePattern": "${log-path}/$${date:yyyy-MM-dd}/FacingIssueOnIT-%d{yyyy-MM-dd}-%i.log.gz"
         }
      },
      "Loggers": {
         "Logger": [
            {
               "name": "com.logging",
               "level": "debug"
            },
            {
               "appender-ref": {
                  "ref": "RollingFile",
                  "level": "debug"
               },
               "name": "root",
               "level": "debug",
               "additivity": "false"
            }
         ],
         "Root": {
            "AppenderRef": [
               {
                  "ref": "file",
                  "level": "error"
               },
               {
                  "ref": "STDOUT",
                  "level": "debug"
               },
               {
                  "ref": "RollingFile"
               }
            ],
            "level": "trace"
         }
      }

   }
}
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